“It is not enough to know the past. It is necessary to understand it.”—Paul Claudel (1868-1955).
“Partem aliquam recte intelligere nemo potest, antequam totum, iterum atque iterum, periegerit.”
No one can rightly understand any part until he has read the whole again and again.
Meaning: Re-read referenced sites, “iterum atque iterum,” “again and again,” until you understand them in full.